#VU112299 NULL pointer dereference in Linux kernel - CVE-2025-38231

Vulnerability identifier: #VU112299

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-38231

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the nfsd_startup_net() function in fs/nfsd/nfssvc.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/0fccf5f01ed28725cc313a66ca1247eef911d55e
https://git.kernel.org/stable/c/5060e1a5fef184bd11d298e3f0ee920d96a23236
https://git.kernel.org/stable/c/83ac1ba8ca102ab5c0ed4351f8ac6e74ac4d5d64
https://git.kernel.org/stable/c/a97668ec6d73dab237cd1c15efe012a10090a4ed
https://git.kernel.org/stable/c/b31da62889e6d610114d81dc7a6edbcaa503fcf8
https://git.kernel.org/stable/c/d622c2ee6c08147ab8c9b9e37d93b6e95d3258e0
https://git.kernel.org/stable/c/deaeb74ae9318252829c59a84a7d2316fc335660

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?